" 1.Calculate the charge carried by "12.5times10^(8)" electrons."

Calculate the charge carried by 12.5xx10^(8) electrons.

The charge equivalent to 6times10^(18) electrons is .

The charge equivalent to 6 times 10^18 electrons is

What is the nature of charge carried by an electron?

In an oil drop experiment, the charges on oil drops were found as 1.5 xx 10^(-15), 3 xx 10^(-15), 4.5 xx 10^(-15), 6.0 xx 10^(-15) . Calculate the magnitude of the charge on the electron.